We all know: many taxi drivers love to talk. Sports, politics, society, traffic jams - they can support a conversation on almost any topic. And when astrobiologist Charles Cockell is in the passenger seat, the conversation is sure to turn to space. Inspired by conversations with taxi drivers from around the world, Cockell answers the most intriguing questions: Will we understand the aliens? What if there is no life in the Universe? Is Mars our Plan B? This book consists of a series of good-natured conversations in the passenger seat of a taxi with a wide variety of drivers who, in a short trip, will delve into the deepest secrets of the cosmos. The publishing layout of the book is saved in PDF A4 format.